19370900

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1997}}^1$

素因数の和:2108

約数の個数: 36

約数和(自身を含む): 42489468

約数和(自身を除く): 23118568

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 1997, 2425, 3994, 4850, 7988, 9700, 9985, 19970, 39940, 49925, 99850, 193709, 199700, 387418, 774836, 968545, 1937090, 3874180, 4842725, 9685450, 19370900]

約数ペア:

[(1, 19370900), (2, 9685450), (4, 4842725), (5, 3874180), (10, 1937090), (20, 968545), (25, 774836), (50, 387418), (97, 199700), (100, 193709), (194, 99850), (388, 49925), (485, 39940), (970, 19970), (1940, 9985), (1997, 9700), (2425, 7988), (3994, 4850)]